Shiz is a combination of sperm and feces that is produced by a human. One will preform the act of shizing if he/she wants to obtain the highest level of satisfaction.

Chris walked up to a apartment building covered in shiz. He looked down at the street and admired the dense shiz that was surrounding his feet. As he opened the door to the apartment building, he saw a figure off into the distance that nearly made him ejaculate in his pants. Maya was standing before him covered in shiz. They immediately started to have rough intercourse until chris shized on Maya's face.